Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2002.69.74Aspergillus flavus, Isolated from Different Foodstuffs
Commonly Used in Jeddah Region, Saudi Arabia]]>BokhariF.M. 1200251Aspergillus flavus isolated from 51 foodstuff samples was screened for aflatoxin production by TLC. It was found that 26.1% of the total isolates were toxic strains and the main toxin was found to be aflatoxin B1. Of 46 foodstuffs commodities surveyed for natural contamination with aflatoxin by HPLC method, 26.1% of the samples were found to contain the aflatoxin and the most contaminated samples were poultry feed, cereal grains and oil seeds. The presence of four aflatoxins B1, B2, G1 and G2 was detected only in two of the tested samples. Bioassay of a toxigenic A. flavus strain (AFB2) had been done on four different types of three seeds and grains, using four different soaking intervals 3, 6, 12 and 24 hours on culture filtrate of the fungus. Germinability of cow pea and chick pea had vigorously reduced when soaked on culture filtrate of the toxic isolate of A. flavus. Broad bean and maize were the most affected since the germination percentage were 0% and 15%, respectively. The toxigenic isolate (AFB4) was used to detect their toxicity on 14 fungal and bacterial species. The toxigenic isolates inhibited the growth of two fungal species (A. flavus and Penicillium digitatum) and two bacterial species (Klebsiella oxytoca and Staphylococcus aureus).]]>Gawad, K.M.A. and A.A. Zohri,19931245564Adegoke, G.O., A.K. Babalola and A. Kanni,19913510441045AOAC., 198013th Edn.,Arai, T., T. Ito and Y. Kojama,1967935964Barrios, M.J., L.M. Medina, M.G. Goidoba and R. Jordano,1997Aspergillus flavus isolated from cheese.]]>60192194Borker, E., N.F. Insalata, L.P. Levi and J.S. Witzeman,19668315351Butler, W.H. and J.M. Brans,19662099090Chourasia, H.K.,1993Aspergillus parasiticus of food preservatives.]]>17204207Ciegler, A. and E.B. Idllelhoj,196810155219Coulter, J.B.S., S.M. Lamplugh, S.G.I. Uliman, B.I. Muktar and R.G. Hendrickse,198635360365De Scott, P.M.,196544702710Deshmukh, S.K. and S.C. Agrawal,198440582584Diener, U.L. and N.D. Davis,19695251258Ewaidah, E. H.,1992107786Ewaidah, E.H.,1998617Farag, R.S., M.A. El-Leithy, A.E. Basyony and Z.Y. Daw,1986Aspergillus parasiticus.]]>6310241026Hendrickse, R.G.,198478427435Hesseltine, C.W., O.L. Shotwell, J.J. Ellis and R.D. Stubblefield,1966Aspergillus flavus.]]>30795805Hooda, K.S. and M. Singh,19925401405Joe, M.S. and M.C. Spanjer,19967913601364Joffe, A.Z.,1969Aspergillus flavus on groundnuts and other plants.]]>64321326Kivanc, M.,199010287294Kriz, H.,197039131134Lacey, J.,19902395405Lalithakumari, D. and C.V. Govindaswami,197039308309Lancaster, M.C.,19682822882288Land, C.J.J., R. Fuchs, S. Hagelberg and H.L. Storm,1987Aspergillus fumigatus as a possible occupational health problem in Sawmills.]]>53787790Lata.,19916144Niles, E.V., A. Joanna, Norman and D. Pimbley,1985Aspergillus flavus in wheat and barley.]]>84259266Park, K.Y. and L.B. Bullerman,1983Aspergillus parasiticus and Aspergillus flavus in rice and cheddar cheese.]]>48889896Pohland, A.E. and G.E. Wood,1987Reiss, J.,19711. Increase of β-Indolacetic acid activity by aflatoxin B1. ]]>64260263Rokesh-Kumar, P., P. Gupta and R. Kumar,199412136139Saad, A.M., A.M. Abdelgadir and M.O. Moss,198912252262Schoeuaral, R. and A.F. White,19652055758Slubblefied, R.D. and O.L. Shotwell,197760784790Sulaiman, E.D. and S.S. Husain,1984Aspergillus and Penicillium species on wheat, rice, barley and corn.]]>27359362Wogan , G.N.,1965Julaifi, M.Z.A. and S.M.A. Juwaied,1999Barmeister, H.R. and C.W. Hesseltine,1966Bokhary, F.M.,19861986Bokhary, F.M.,19931993Coulter, J.B.S., S.M. Lamplugh, G.I. Suliman, M.I.A. Omer and R.G. Hendrickse,198446166Hsieh, D.P.H. and J.J. Wong,19941994Lillehoj, E.B., A. Ciegler and H.H. Hall,1967Seiber, J.N. and D.P.H. Hsieh,197356827830